498 Verrill, Notes on Radlata. 



elongated, small, slender, acute, each one having a small tubercle out- 

 side of its base. 



Color, in ah-ohol, dark yellowish brown beneath the sandy layer, 

 which is composed of differently colored grains. In a specimen dis- 

 sected there were 42 internal lamellae, of which 15 bore convoluted 

 cords on the lower half. 



Height of the larger polyps "30 to "40 ; diameter -10 to '1 2 of an inch. 



Zorritos, Peru ; and Pearl Islands, — F. H. Bradley. 

 Epizoanthus humilis Verrill, sp. nov. (Gemmaria hujiilis, 1st Ed.). 



Basal membrane continuous, thin, but firm. Polyps very unequal 

 in size, closely arranged, usually in contact at base, low, in contraction 

 forming rounded verrucre, which are often broader than high. Sur- 

 face covered with a thin layer of fine sand, at the top of the contracted 

 polyps showing about 1 2, distinct, radiating sulcations. Color light 

 yellowish brown, when preserved in alcohol. Height of largest polyps, 

 contracted in alcohol, -06 to -08 ; diameter -08 to -10 of an inch. 



Panama, — F. H. Bradley. 



Epizoanthns crassus Ven-ill. sp. nov. (Gemmaria crassa, 1st Ed.). 



Polyps large, elongated, subcylindrical ; surface, in contraction, 

 strongly wrinkled transversely, and covered with a thick layer of fine 

 sand ; summit with about 20 strong sulcations, which radiate from the 

 centre of the involved summit. Integument thick and firm. Tenta- 

 cles about 66, acute, moderately long, with a small papilliform tuber- 

 cle, or secondary tentacle, in front of the base, and a larger, tentaculi- 

 foim tubercle outside the base of each, the latter bearing sand on its 

 outer surface. 



Height of contracted polyps 1'25; diameter '25 of an inch. 



Acajutla, San Salvador, — F. H. Bradley. 



The specimen dissected had a very large cavity below the stomach, 

 w^ith 66, narrow, radiating lamellae, which suddenly become broad near 

 the base, meeting at the centre and nearly filling the cavity. The 

 ovaries were attached to the broad portion, and the parts filled with 

 enlarged eggs rose upward into the cavity, the eggs being arranged 

 in single series. 



The marginal processes outside each of the tentacles were larger 

 than the true tentacles, broad, laterally compressed, rounded at tips, 

 the outer edge covered with sand ; below their bases the sand grains 

 were aggregated in masses, as if attached to small papillae. The pa- 

 pillae in front of the bases of the tentacles were nearly half as long as 

 the tentacles and similar in form. 



